Adjustable table-leg clamp.



R. H. NULL.

ADJUSTABLE TABLE LEG CLAMP. APPLICATION FILED AUG-31. 1917.

1 ,273,088. Patented July 16, 1918.

H aw-M UNTTE RUFUS H. NULL, or ennmvsnono, NORTH CAROLINA.

ADJ U-STABLE TABLE-LEG CLAMP.

Specification of Letters Patent. Patented July 16 1918 Application filed August 31, 1917. Serial 'N 0. 189,142.

To all whom it may concern:

Be it'known that 1, Burns H. NULL, a citizen of the United Staten-residing at Greensboro, in the county of Guilford', State of North Carolina, have invented'a new and useful Adjustable Table-Leg Clamp; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. r

The present invention relates to an improved'fastening means for furniture legs, and has for its object to provide a device of this character whereby the leg of a table or like article of furniture can be securely clamped in position in such amanner that it can be readily released at any time, or any looseness therein quickly takenup.

Further objects of the invention are to provide an' adjustable furniture leg clamp which is comparatively simple and inexpensive in itsconstruction, which can be utilized in the' manufacture of tables and like articles of furniture, since it eliminates the necessity of weakening the table'leg by boring a hole through the same to receive a "bolt, and which will enable any looseness to be easily and quickly taken up at any time. 30

invention consists in certain novel combina- With these and other-objects in view, the

tions and arrangements of the parts as will more fully appear as the'des'cription proceeds, the novel features thereof being pointed out in the appended claims. 7

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which Y I Figure 1 is a top plan view of a table leg fastening constructed in accordance with the invention, the tabletop being removed and portions being broken away and shown in section to illustrate more clearly the details of construction; V Fig. 2 is a side elevation of the table leg fastening means, the lower end of the table leg'being broken away and the-table top appearing in section.

Fig. 3 is a detachedperspective view of 'on-eof the L'-shaped clamping members,

Correspondingan'd llkeparts are referred members.

to in the following description and :indicated in all the views of the drawings by the same reference characters.

For the purpose of illustration the invention is shown as applied to the leg of a table,

although it will be understood that substantially the same constructioncan be utilized for clamping in position the leg of any similar article of furniture. The numeral .1

designates the top of a table, and 2 the usual side flange or apron which is pendent from the periphery of the table top. The table leg 3 terminates'at the upper end thereof in a-shank 3 which has one side thereof cut-away to provide a flat face 4 adapted to shank has the corners thereof beveled, as

indicated at 6.

A pair of similar and complemental positioning blocks 7 are applied to the inner face of the depending flange 2 on opposite sides of the table leg, being rigidly secured in position by suitable fastening members such as the screws 8,= and being preferably slightly spaced from the table leg so as to provide a small clearance space between the Fastening members 9 may also be provided for securing the positioning blocks 7 to the table top 1. I Fitted against the outer faces of. the positioning blocks 7 are L-shaped clamping members 10, the short arms of the said L-shaped members extending inwardly at the inner corners of the positioning blocks 7 and terminating in wedge. V shapednoses '11 which engage the beveled corners 6 of the'table leg shank. The long arms 10 of the L-shaped. clamping members have a wedge shaped formationand gradually increase in thickness from their intersection with the short arms to the free ends thereof. These long arms-10. of the'clamp-w 'ing members are secured to the positioning blocks 7 by means of bolts 12 which pass loosely through openings 13 therein, and are provided at their outer ends with polygonal heads12 The openings 13 are sufficiently large to allow. for the necessary lateral play of the clamping bolts 12' therein, andthe polygonal heads 12 of the bolts project from the clamping members in such a manner that they can be readily engaged by a wrench or other tool for tightenin or loosening the same. The outer faces of the long arms and short arms of the L-shaped clamp= ing members are shown as disposed in substantially right angles to each other, while the inner faces of the said arms are arranged at an acute angle. When the clamping members are fitted-against the outer faces of the positioning blocks 7 in operative position, the inner sides of the long arms of the clamping members are inclined inwardly away from the faces of the positioning blocks with the outer ends of the wedge shaped long arms 1O bearing against the positioning blocks, while the wedge shaped noses 11' of the short arms bear against the beveled corners 6 of the table leg shank 3. This is clearly indicated by Fig. 1, and it will be obvious that with this arrangement the table leg can be rigidly clamped in posi tion by tightening the clamping bolts 12, and that any looseness which may subsequently develop can be easily taken up by the further tightening of the said clamping bolts. On the other hand, should it be desired to remove the table leg for any purpose, it is merely necessarygto loosen the clamping bolts 12 and release the L-shaped clamping members 10 from their engagement with the beveled corner-s6 of the shank of the table leg- This provides a simple construction which enables the table leg to be firmly held in operative position without the necessity of weakening it by boring a hole therein to receive a bolt or similar fastening member. 7 a r I Having thus described the invention, what I claim'as new and desireto' secure by Letters Patent, is z- V igTh-e combination with an article of furniture including a vertical side, flange and a supporting leg having a shank at the upper end thereof which is formed with a flat face fitting squarely against the before mentioned side flange and with beveled outer I corners, of spaced positioning blocks secured to the flange onopposite sides of the shank, and clamping members adjustably secured to the positioning blocks and formed with wedge shaped portions engaging the beveled corners of the table leg shank to clamp it tightly'in position.

2. The combination with an article of a vertical side flange leg having a shank at the flange and with beveled outer corners, of spaced positioning blocks secured to the flange on opposite sides of the table leg corners, of spaced positioning blocks secured to the said flange on oppos te sides of the furniture leg shank, L-shaped clamping members applied to the outer faces of the positioning blocks, one arm of each of the L-shaped clamping members terminating in a wedge shaped nose whichengages one of the beveled corners of the furniture leg shank, while the opposlte arm thereof has a wedge shaped formation and extends across the outer face of the correspondlng positioning block, and clamping bolts extending loosely through the last mentioned arms of v the L-shaped clamping membersand adjustably securing them to the positioning blocks.

4. The combination with ;an furniture formed with a vertical side flange,

article of s and a supporting leg having a shank at the upper end thereof which is formedwitha flat face fitting squarely against the said side of the flange and with beveledouter cor- 11ers, of spaced positioninto the flange on opposite si' a pair of L-shaped clamping members, the short arm of each clamping membertermi nating in a wedge shaped nose which engages a beveled cornerof' the supporting leg blocks secured esof the shank,

shank, while the long arm of each of the clamping members has a wedge shaped formation and gradually. increases in thickness from its intersections with the short arm to the free end thereof, said long arms of therein and the thickened free endsthereof having a rocking engagement with the outer faces of the positioning blocks, and clamping bolts extending through the openi-ngs of" the long arms of the clamping members and engaging the positioning blocks.

, 7 5. The combination with a v i: ,1,

- side flange and is provided at its outer side with a beveled corner, of spaced positioning of the supporting leg shankyand an-L-V the clamping members having openings blocks secured to thefl-ang'e on opposite sides shaped clampingmember one arm of the clamping 7, member terminating in a wedge L shaped nose Which; engages the beveled corner of the supporting leg shank, while the opposite arm of the L-sheped clamping name to this specification in the presence of member is formed With an opening 213d. has two subscribing Witnesses. a rockin en agement at its outer en Wit the face of ine of the positioning blocks, RUFUS NULL 5 and a clamping bolt passing through the said Witnesses:

opening and engaging the positioning block. WILLIAM C. Gnoss,

In testimony whereof I have signed my JACKSON R. FOSTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O. 

